SIGMA summation (RESOLVED)

02202020, 09:52 PM
(This post was last modified: 02242020 09:10 AM by StephanP.)
Post: #1




SIGMA summation (RESOLVED)
In CAS mode, one can do a summations like sum(5*n+3,n,0,25) = 1703
But in the official Dutch Exam mode, CAS is disabled. The TI84 Plus CET has a very nice summation SIGMA( function that remains available in Exam mode. I can't seem to find if there is a nonCAS equivalent to the sum() function? 

02202020, 10:48 PM
Post: #2




RE: SIGMA summation
There is a summation sign in the template menu (to the right of the toolbox) that works in the HOME screen (third entry in bottom row). Just remember to use a predefined variable (such as an uppercase letter).


02202020, 10:55 PM
Post: #3




RE: SIGMA summation
Hello
With 2 functions: ΣLIST(MAKELIST(5*X+3,0,25)) Sure there are other possibilities. 

02202020, 11:16 PM
Post: #4




RE: SIGMA summation
You find it in the mathematical templates
Σ(5*X+3,X,0,25) Viga C  TD  FB 

02212020, 03:52 AM
Post: #5




RE: SIGMA summation
Ha, the templates!
I'm not quite used to that button. Magic. Thanks, fellows. 

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